povray - old dominion universitycs355m/dbs/povray/max_plank_institute_pov-ray... · 08.12.1009...

08.12.1009 Dipl.Ing Sibylle Nägle, MPIDS 1

POVRay


POVRay

● Developed in the 1980th ● First steps by David Kirk Buck, he called it DKBTrace● It was turned to a group of developers in 1991

and calledPersistence of Vision Raytracer

POV-Ray


examples

by Sibylle Nägle


some examples

by Jaime Vives Piqueres


some examples

by Jame Vives Piqueres


some examples

by Gilles Tran


some examples

by Jaime Vives Piqueres


some examples

by Jonathan Hunt


Raytracing


mechanisms reflection


mechanisms absorption


mechanisms refraction


mechanisms example


coordinates

lefthanded coordinate systemby F.A. Lohmüller


first scene

necessary ingredients: light source camera object to be shown


first scene

light_source { <200,300,300> rgb <1,1,1> }camera { location <10,10,10> look_at <0,0,0> }

sphere { <0,0,0>,6 pigment { rgb <1,0.4,0.9> } }

povray +imyscene.pov +omyscene.png +A0.0


adding background

light_source { <200,300,300> rgb <1,1,1> }camera { location <10,10,10> look_at <0,0,0> }background { color rgb <0.5,0.7,0.9> }

sphere { <0,0,0>,6 pigment { rgb <1,0.4,0.9> } }


phong


sphere { <0,0,0>,6 pigment { rgb <1,0.4,0.9> } finish { phong 1 } }

phong determines brightness 0= dull, 1=bright


mehrere Lichtquellen

light_source { <200,300,300> rgb <1,1,1> }light_source { <110,120,30> rgb <1,1,1> }camera { location <10,10,10> look_at <0,0,0> }background { color rgb <0.5,0.7,0.9> }

sphere { <0,0,0>,6 pigment { rgb <1,0.4,0.9> } finish { phong 1 } }


basic objects box

Box:box { <x1,y1,z1> , <x2,y2,z2> }

P1

P2


basic objects cylinder

Cylinder:cylinder { <x1,y1,z1> , <x2,y2,z2>,r }

P1

P2

r


basic objects cone

Cone:cone { <x1,y1,z1>,r1, <x2,y2,z2>,r2 } P1

r1

P2

r2


basic objects torus

Torus:torus { r1, r2 }

r1

r2


basic objects plane

Plane:plane { <0,1,0>,0 }

Normal vector and distance to origin P

n


basic objects text

Text:text { ttf “timrom.ttf” “POVRay” 0.15, 0

pigment { rgb <1,0.4,0.9> } finish { phong 1} }

0,0,0


transformation: scale


sphere { <0,0,0>,6 pigment { rgb <1,0.4,0.9> } finish { phong 1 } scale <0,0.3,0> }


transformation: translate

light_source { <200,300,300> rgb <1,1,1> }light_source { <110,120,30> rgb <1,1,1> } camera { location <10,10,10> look_at <0,0,0> }background { color rgb <0.5,0.7,0.9> }

box { <0,0,0>,<5,5,5> pigment { rgb <1,0.4,0.9> } finish { phong 1 } translate <0,3,0> }


transformation: rotate

light_source { <200,300,300> rgb <1,1,1> }light_source { <110,120,30> rgb <1,1,1> } camera { location <10,10,10> look_at <0,0,0> }background { color rgb <0.5,0.7,0.9> }

box { <0,0,0>,<5,5,5> pigment { rgb <1,0.4,0.9> } finish { phong 1 } rotate <30,0,0> }


several objects: union

#declare myobject = union { sphere { <0,0,0>,6 pigment { rgb <1,0.4,0.9> } finish { phong 1 } } box { <5,5,5>,<5,5,5> pigment { rgb <0.4,0.9,1> } finish { phong 1 } }}object { myobject }


several objects: difference

#declare myobject = difference { sphere { <0,0,0>,6 pigment { rgb <1,0.4,0.9> } finish { phong 1 } } box { <5,5,5>,<5,5,5> pigment { rgb <0.4,0.9,1> } finish { phong 1 } }}object { myobject }


several objects: intersection

#declare myobject = intersection { sphere { <0,0,0>,6 pigment { rgb <1,0.4,0.9> } finish { phong 1 } } box { <5,5,5>,<5,5,5> pigment { rgb <0.4,0.9,1> } finish { phong 1 } }}object { myobject }


combining objects

#declare myobject = intersection { sphere { <0,0,0>,6 } box { <5,5,5>,<5,5,5> }}object { myobject pigment { rgb <0.4,0.9,1> } finish { phong 1 } }


adding a floor

#declare myobject = intersection { sphere { <0,0,0>,6 } box { <5,5,5>,<5,5,5> }}object { myobject pigment { rgb <0.4,0.9,1> } finish { phong 1 } }plane { <0,1,0>,5 pigment { rgb <0.9,0.5,0.7> } }


patterns

#declare myobject = intersection { sphere { <0,0,0>,6 } box { <5,5,5>,<5,5,5> }}object { myobject pigment { rgb <0.4,0.9,1> } finish { phong 1 } }plane { <0,1,0>,5 pigment { brick rgb <1,1,1>, rgb <0.9,0.5,0.7> }


prepared textures cork

#include “textures.inc”#declare myobject = intersection { sphere { <0,0,0>,6 } box { <5,5,5>,<5,5,5> }}object { myobject texture { Cork scale <10,10,10> } }plane { <0,1,0>,5 pigment { brick rgb <1,1,1>, rgb <0.9,0.5,0.7> }


patterns

#declare myobject = union { sphere { <0,0,0>,6 }}object { myobject pigment {

image_map { jpeg "images/earth.jpg" once map_type 1 } rotate <0,180,40> } }

plane { <0,1,0>,5 pigment { brick rgb <1,1,1>, rgb <0.9,0.5,0.7> }


transparency

#declare myobject = union { sphere { <0,0,0>,6 } box { <5,5,5>,<5,5,5> }}object { myobject pigment { rgbf <0.4,0.9,1,0.5> } finish { phong 1 } }plane { <0,1,0>,5 pigment { brick rgb <1,1,1>, rgb <0.9,0.5,0.7> }


index of refraction

#declare myobject = intersection { sphere { <0,0,0>,6 } box { <5,5,5>,<5,5,5> }}object { myobject pigment { rgbf <0.4,0.9,1,0.8> } finish { phong 1 ior 1.5 } }plane { <0,1,0>,5 pigment { brick rgb <1,1,1>, rgb <0.9,0.5,0.7> }


prepared textures glass

#include “textures.inc”#declare myobject = intersection { sphere { <0,0,0>,6 } box { <5,5,5>,<5,5,5> }}object { myobject texture { Glass3 }

pigment { rgbf <0.4,0.9,1,0.8> } finish { phong 1 ior 1.5 } }plane { <0,1,0>,5 pigment { brick rgb <1,1,1>, rgb <0.9,0.5,0.7> }


loops#declare myx=7;#declare myobject_diff = difference { #declare myobject = intersection { sphere { <0,0,0>,6 } box { <5,5,5>,<5,5,5> } } object { myobject pigment { rgb <0.4,0.9,1>} finish { phong 1 } } #while (myx<10) box { <myx0.01,6,6>,<myx+0.5,6,6> } #declare myx = myx+1; #end}object { myobject_diff pigment { rgb <0.4,0.9,1> } finish { phong 1 } }plane { <0,1,0>,5 pigment { rgb <0.9,0.5,0.7> } }


loops


references

Documentation: http://www.povray.org/documentation/ Tutorial (in german):

http://www.flohmueller.de/pov_tut/animate/pov_anid.htm

Pictures: Raytracing:

http://en.wikipedia.org/wiki/Ray_tracing_(graphics) Refraction, Reflection, ...

http://photoprotection.clinuvel.com/photodermatologyphotobiology Coordinate system:

http://www.flohmueller.de/pov_tut/basic/povkurs2.htm Earth:

http://itmaterial.de/2009/09/meteosat2artificiallycolouredvisiblechannelfulldiskearthimage/


thanks

povray - old dominion universitycs355m/dbs/povray/max_plank_institute_pov-ray... · 08.12.1009...

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